In a terse filing, federal prosecutors asked U.S. District Court Judge Jose Linares to “dismiss the superseding indictment’’ against Menendez, a New Jersey Democrat.

10/12 jurors voted to acquit Menendez in his first trial.

Menendez’s first trial ended in a hung jury in November, with 10 of the 12 jurors voting to acquit him. Earlier this month, prosecutors had signaled they intended to retry the senator, and shortly after that a judge scaled back the case, tossing out some of the charges he and a co-defendant had faced.